121 



preferring more shade than other Cladinae, in eastern Long 

 Island, and in Pine Barrens; less common northward. 



5. C. impexa Harm. Reported by Dr. Evans in Connecticut, 

 to be looked for in our range. 



6. C. alpestris (L.) Rabenh. Found by this writer on 

 North Mountain, in the northeastern Catskills at 3000 feet. 

 Common in eastern and northern New England. Orient, L. I. 

 (Roy Latham). 



7. C. papillaria (Ehrh) Hoffm. (PI. 1, f. 4.) Common, in 

 the New Jersey Pine Barrens, in eastern Long Island, and in 

 barren, gravelly, or sandy places elsewhere in area covered, 

 sometimes at high elevations, to above 2,000 feet in Shawan- 

 gunks and Poconos. Occurs in three forms, of which f. molari- 

 formis, with relatively large, stout and much branched podetia 

 is commonest; f. papillosa, with small papilliform podetia, 

 fairly common in arid or exposed places, from sea level to 2,000 

 feet; and f. stipata, with sterile, densely papillose upper 

 branches, rarer, on high summits of Shawangunks and Poconos. 



8. C. Floerkeana (Fr.) Floerke. (PI. 1, f. 7.) occasionally 

 mixed with C. bacillaris and macilenta, in moist woods, on earth 

 or rotten wood, along New Jersey Pine Barren streams, or in 

 low places on Long Island; less common in Highlands. Our 

 usual form is var. intermedia Hepp, esquamulose; var. car- 

 cata, squamulose; and var. squamosissima, densely squamu- 

 lose, are recorded by Dr. Evans in Connecticut and may be 

 looked for elsewhere in our range. 



9. C. bacillaris (Ach.) Nyl. (PI. 1, f. 6.) Never very plenti- 

 ful in any one place, but widely distributed in our area, taller 

 in moist places, dwarfed in thin soil over rocks in the highlands. 

 Forms found by writer were f. CLAVATA (Ach.) Vainio, with 

 blunt tipped podetia and f. peritheta, (Wallr.) Arm, with 

 minute accessory apothecia on short lateral branches. 



10. C. macilenta Hoffm. (PI. 1, f. 10.) May be found with 

 two previous species, but is rarer, and not readily distinguish- 

 able until KOH test is made, when yellow reaction determines 

 it. In Pine Barrens and eastern Long Island, in the Catskills up 

 to 2500 feet, probably elsewhere in our range. Our usual form is 

 f. styracella, (Ach.) Vainio, with farinose soredia; other 

 forms are granulosa and corticata. 



11. C. didyma (Fee) Vainio, (PI. 1, f. 8.) related to and 



